.380 was the last caliber to come back last time, the manufacturers use the same machines to make 9mm and won’t stop until they have filled all of the orders.
They usually run 10 months of 9mm and switch to .380 for two months.
Yup. .380 is not a big player in the caliber mix. 9mm is the same diameter and only 2mm longer cartridge. So why buy a .380 pistol? ( I have a Sig P232 SL)